Serum Markers in Testicular Tumors Ambati S. Narayana, Stefan Loening, George Weimar, David A. Culp. The Journal of Urology. Serum Markers in Testicular Tumors. 1979; 121(1):51-53. 1979 https://researcherprofiles.org/profile/402645426 Ambati S. Narayana, Stefan Loening, George Weimar, David A. Culp